RTF malware analysis — malicious · 3c21a607605a7e7a

MALICIOUS

RTF

487.5 KB Authoring application: Msftedit 5.41.15.1507 First seen: 2014-04-13

MD5: b923963b5e098cc01b9c95979a13ee73 SHA-1: ae8e3990a3dc347f196617ad4c743c0ccbe32ac9 SHA-256: 3c21a607605a7e7ad625a203cc14bef53a29708480f51db72a7c4339159d40b9

142 Risk Score

Heuristics 6

MSCOMCTL.Toolbar — CVE-2012-0158 / CVE-2012-1856 high CVE related CVE_2012_1856

RTF \objdata decodes to OLE data containing the MSCOMCTL.Toolbar — CVE-2012-0158 / CVE-2012-1856 CLSID — the vulnerable control/moniker is embedded directly in the document's object stream, the delivery shape of this exploit. RTF objects auto-render when Word opens the file.
Package object class high RTF_OBJCLASS_PACKAGE

OLE Package object — can wrap arbitrary files
OLE object data medium RTF_OBJDATA

RTF contains 5 \objdata section(s) — embedded OLE objects
Embedded OLE object medium RTF_OBJEMB

RTF contains \objemb — embedded OLE object
OlePres presentation stream in RTF OLE object medium RTF_OLEPRES_STREAM

RTF contains an embedded OLE object with an OlePres presentation stream. OlePres is an OLE presentation marker and is not enough on its own to identify CVE-2025-21298.
Suspicious extracted artifact info EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.

Extracted artifacts 5

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`objdata_00_off0000012e.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x12E	5853 bytes
SHA-256: `25bede2e15fc6d5f2254e69faa5db47243b34349407f5b33f244027374e535f0`
`objdata_01_off00003064.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x3064	220520 bytes
SHA-256: `81d1ac639b991fdc0342c65b42bdcab0e6a7e83db1a2bb28c9cd1c51b727f962`
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact entropy is 7.60, consistent with packed or encrypted content.
`objdata_02_off00071695.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x71695	440 bytes
SHA-256: `ea5d234f81e7c6f4d2681a1e14ba35656c4caea1ff0358220f369a5f5b5ba6da`
`objdata_03_off00071a2b.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x71A2B	4824 bytes
SHA-256: `ab9e0b22885cde07a8fa9164bb952925717d0f1616bf139f9988bf17499b96fd`
`objdata_04_off00071dbf.bin`	rtf-objdata-decoded	RTF \objdata at offset 0x71DBF	2368 bytes
SHA-256: `ac301d958c025c40e28d1156d0c99f07250039c719d3e0b97f44167b5dd9293c`

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